CN107105261A - The method decoded to intra prediction mode - Google Patents
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Abstract
The method decoded to intra prediction mode.Methods described comprises the following steps：Reconstruct intra prediction mode group designator and predictive mode index；MPM groups are constructed using the left side block of current block and the intra prediction mode of presence of upper mass, and the MPM groups include three intra prediction modes；When the intra prediction mode group designator indicates that the intra prediction mode of the current block belongs to the MPM groups, it is determined that intra prediction mode of the intra prediction mode corresponding with the predictive mode index in the MPM groups as the current block；And when the intra prediction mode group designator indicates that the intra prediction mode of the current block is not belonging to the MPM groups, index the intra prediction mode with the MPM groups to determine the intra prediction mode of the current block using the predictive mode.
Description
The application is that (international application no is PCT/KR2012/003081, international application to Application No. 201280047215.8
Day be on 04 20th, 2012, entitled " be used for decoded to intra prediction mode method and apparatus ") invention
The divisional application of patent application.
Technical field
The present invention relates to a kind of intra prediction mode coding/decoding method and intra prediction mode decoding device, and more specifically
Ground, is directed to use with the left side block of current block and the intra prediction mode generation MPM groups of upper mass and uses MPM groups, the frame in
The method and apparatus that predictive mode group designator and predictive mode index are decoded to intra prediction mode.
Background technology
View data must be encoded to effectively store or send view data.Known MPEG-1, MPEG-2, MPEG-
4th, the technology that H.264/MPEG-4AVC (advanced video coding) etc. is encoded to view data.In these techniques, picture
Be divided into multiple macro blocks, come by unit of macro block it is determined that perform intraframe coding or or interframe encode in it is any, and
And macro block is encoded using the coding method of determination.
As newest Image Compression H.264 in, perform infra-frame prediction to strengthen the efficiency of intraframe coding.
That is, prediction block is produced using pixel value spatially adjacent with current block to be encoded, rather than is come with reference to reference picture
Encode current block.Specifically, by with relatively selecting the frame in very little distortion compared with adjacent pixel values original macro
Predictive mode, and create using selected intra prediction mode and adjacent pixel value that current block to be encoded arrives it is pre-
Survey block.Creating includes the residual block of difference signal between current block and prediction block, and residual block is entered line translation, quantization and
Entropy code.Also the intra prediction mode for creating prediction block is encoded.
However, in h .264, no matter current block left side block and upper mass intra prediction mode directionality, it is right
The intra prediction mode of current block is encoded, therefore there is the problem of code efficiency is low.When the quantity of intra prediction mode increases
, it is necessary to which a kind of have than frame predictive mode coding method efficiency high H.264 when being strengthened the code efficiency of residual block
Intra-frame predictive encoding method and intra prediction mode coding/decoding method.
The content of the invention
Technical problem
It is an object of the invention to provide a kind of method and apparatus, left side block and top that it can be by using current block
The intra prediction mode of block is created MPM groups and the intra prediction mode of current block is entered using the MPM groups and using the MPM groups
Row encodes to strengthen the compression efficiency and decompression efficiency of image.
Technical scheme
According to an aspect of the invention, there is provided a kind of intra prediction mode coding/decoding method, this method includes following step
Suddenly：Reconstruct intra prediction mode group designator and predictive mode index；Use the left side block and the valid frame of upper mass of current block
Inner estimation mode constructs MPM groups, and the MPM groups include three intra prediction modes；When the intra prediction mode group is indicated
When symbol indicates the MPM groups, it is determined that the intra prediction mode conduct corresponding with the predictive mode index in the MPM groups
The intra prediction mode of the current block；And when the intra prediction mode group designator does not indicate the MPM groups, use
The predictive mode index determines the intra prediction mode of the current block with the intra prediction mode of the MPM groups.
The MODE NUMBER of non-directional pattern is lower than the MODE NUMBER of the directional mode.
In the intra prediction mode coding/decoding method, when the left side block and the upper mass of only described current block
When an intra prediction mode in the intra prediction mode is effective, the MPM groups include two additional intraprediction moulds
Formula, and described two additional intra prediction modes determine according to the intra prediction mode.Pattern 0 is assigned to plane
Pattern and pattern 1 is assigned to DC patterns.
In the intra prediction mode coding/decoding method, the left side block and the institute of the upper mass when the current block
State that intra prediction mode is all effective, differing from each other and at least one in the intra prediction mode is non-directional mould
During formula, directional mode is added to the MPM groups；And when the current block the left side block and the upper mass it is described
Intra prediction mode is all effective, mutually the same and when being directional mode, both direction mould is added to the MPM groups
Formula.
Beneficial effect
In the method for encoding images according to the present invention, intra prediction mode group designator and predictive mode rope are reconstructed
Draw, constructed using the left side block of current block and effective intra prediction mode of upper mass including three intra prediction modes
MPM groups, the frame corresponding with the predictive mode index in MPM groups is determined when intra prediction mode group designator indicates MPM groups
Inner estimation mode and makes as the intra prediction mode of current block when intra prediction mode group designator does not indicate MPM groups
Index the intra prediction mode with MPM groups to determine the intra prediction mode of current block with predictive mode.Non-directional pattern
MODE NUMBER is lower than the MODE NUMBER of directional mode.
Therefore, by having frame in of the intra prediction mode identical compared with high likelihood with current block to first group of addition
Predictive mode, it is possible to reduce the information content encoded for the intra prediction mode to current block.In addition, by non-direction
Sexual norm assigns lowest mode to compile, it is possible to reduce information content.
Brief description of the drawings
Fig. 1 is the block diagram for illustrating the motion picture encoding apparatus according to embodiment of the present invention.
Fig. 2 is the block diagram for illustrating the motion picture decoding device according to another embodiment of the invention.
Fig. 3 is to be illustrated in the method according to intra-frame prediction block is created in embodiment of the present invention motion picture decoding device
Figure.
Fig. 4 is the concept map for illustrating the intra prediction mode according to embodiment of the present invention.
Fig. 5 is the figure for illustrating the intra prediction mode coding order according to embodiment of the present invention.
Embodiment
Hereinafter, the various embodiments of the present invention be will be described in detail with reference to the accompanying drawings.The present invention can be according to various shapes
Various embodiments are changed and can had to formula.These embodiments are not intended to the limitation present invention, and are appreciated that
The present invention includes belonging to all modifications, equivalent and replacement in the spirit and technical scope of the present invention.Coming referring to the drawings
During the description present invention, identical element is indicated by the same numbers.
Can be user terminal according to the motion picture encoding apparatus and motion picture decoding device of the present invention, it is such as personal
Computer, notebook-PC, personal digital assistant, portable media player, smart phone, radio communication are whole
End and television set or the server that service is provided.Motion picture encoding apparatus and motion picture decoding device can be such one
Equipment is planted, the equipment has：Such as communication modem is used for various devices or wirelessly or non-wirelessly communication
Communication equipment；Store the various programs and the memory of data for being encoded or being decoded to image；And perform described
Microprocessor of the program to perform operation and control.
Fig. 1 is the block diagram for illustrating the motion picture encoding apparatus according to embodiment of the present invention.
Included according to the motion picture encoding apparatus 100 of embodiment of the present invention：Intra-framed prediction module 110, inter prediction
Module 120, conversion with quantization modules 130, entropy code module 140, re-quantization and inverse transform module 150, post-processing module 160,
Picture buffer 170, subtraction block 190 and addition module 195.
Intra-framed prediction module 110 usually creates intra-frame prediction block using the picture or the reconstructed image of fragment belonging to current block.
Intra-framed prediction module 110 is selected according to the size of the current block of coding to be predicted in predetermined quantity intra prediction mode
One, and create prediction block using selected intra prediction mode.
Inter prediction module 120 performs estimation computing using the reference picture in picture buffer 170 is stored in,
And determine the reference picture index and motion vector for estimation computing.Then, Inter prediction module 120 uses reference
Picture indices and motion vector create the interframe prediction block of current block.
Convert the residual of the prediction block that is created with 130 pairs of quantization modules by intra-framed prediction module 110 or Inter prediction module 120
Block is stayed to carry out transform and quantization.The conversion is performed using one-dimensional transform matrix in the horizontal and vertical directions.Use basis
The size (that is, the size of residual block) and intra-framed prediction module of transform block and the transformation matrix that determines are converted for infra-frame prediction
Residual block.The residual block for inter prediction is converted using predetermined transformation matrix.
Conversion is quantified with quantization modules 130 using quantization step to transform block.Quantization step can according to being equal to or
Change more than the coding unit of predefined size.
The transform block of quantization is provided to re-quantization and inverse transform module 150 and entropy code module 140.
The transform block of 150 pairs of quantizations of re-quantization and inverse transform module carries out re-quantization and the transform block to re-quantization is carried out
Inverse transformation is to reconstruct residual block.Residual block that addition module reconstructs re-quantization and inverse transform module 150 and from infra-frame prediction
Module 110 or the prediction block of Inter prediction module 120 are added to create reconstructed blocks.
Post-processing module 160 is used for the picture quality of the picture reconstructed, and including de-blocking filter module 161, compensation
(offset) module 162 and loop filter module 163.
De-blocking filter is adaptively applied to the border of prediction block and transform block by de-blocking filter module 161.Can be with
Border is limited to the border of 8 × 8 grids.De-blocking filter module 161 determines border to be filtered, determines its boundary intensity,
And determine whether de-blocking filter should be applied into border when boundary intensity is more than 0.When reply boundary filtering is determined,
The selection of de-blocking filter module 161 will be applied to the wave filter on border and using selected wave filter to boundary filtering.
Compensating module 162 is determined whether that compensation should be applied to reduce experience de-blocking filter module by picture or fragment
The distortion between pixel and corresponding original pixels in image.Alternatively, fragment is divided into multiple compensating basins and can be with
The compensation type of each compensating basin of intensity.Predetermined quantity edge compensation type can be included and with compensation type by compensating type.
When it is edge compensation type to compensate type, determines the edge type belonging to each pixel and apply corresponding compensation to it.Side
Edge type is the distribution based on two pixel value adjacent with current pixel and determined.
Loop filter module 163 is in knot of the reconstructed image compared with original image to experienced compensating module 162
To reconstructed image adaptively loop filtering on the basis of fruit.Determine whether that ring should be carried out to reconstructed image according to coding unit
Road is filtered.The size and coefficient of the loop filter to be applied can be changed according to coding unit.Can be in each fragment
Head includes indicating whether that the information of auto-adaptive loop filter should be applied according to coding unit.In the situation of carrier chrominance signal
Under, it may be determined that whether should apply auto-adaptive loop filter by picture.It therefore, it can in slice header or picture header
Include the information for indicating whether to be filtered chromatic component.
Picture buffer 170 receives post-treated view data and using picture as unit from post-processing module 160
To reconstruct simultaneously storage image.Picture can be image using frame as unit or using field as the image of unit.
140 pairs of entropy code module is by converting the quantization parameter information quantified with quantization modules 130, from intra-framed prediction module
140 intraframe prediction informations received, the movable information received from inter prediction unit 150 carry out entropy code.Entropy code mould
Block 140 includes scan module 145, and scan module 145 is used for the transformation of coefficient of quantified transform block into one-dimensional quantization parameter.
Scan module 145 determine for by the transformation of coefficient of quantified transform block into one-dimensional quantization parameter scanning class
Type.Scan type can change according to directional intra prediction pattern and the size of transform block.Scan in a rearward direction
Quantization parameter.
When quantified transform block is more than predefined size, conversion coefficient is divided into multiple sub-blocks and is scanned.Should
Scan type for the conversion coefficient of sub-block is identical.Scan type applied to sub-block can be zigzag scanning, or
Can be and the conversion coefficient identical scan type applied to sub-block.
Fig. 2 is the block diagram for illustrating the motion picture decoding device 200 according to another embodiment of the invention.
Included according to the motion picture decoding device 200 of embodiment of the present invention：Entropy decoder module 210, inverse quantization module
220th, inverse transform module 230, intra-framed prediction module 240, Inter prediction module 250, post-processing module 260, picture buffer 270
With addition module 280.
210 pairs of bit streams received of entropy decoder module are decoded and the bit stream are separated into infra-frame prediction letter
Breath, inter prediction information, quantization parameter information etc..The intraframe prediction information of decoding is supplied to frame in pre- by entropy decoder module 210
Module 240 is surveyed, and the inter prediction information of decoding is supplied to Inter prediction module 250.Entropy decoder module 210 includes inverse sweep
Module 215 is retouched, the quantization parameter information of 215 pairs of decodings of inverse scan module carries out inverse scan.
Quantization parameter information is converted into two dimension and quantifies block by inverse scan module 215.In order to change, multiple scan types are selected
In one.Scan type can change according to directional intra prediction pattern and the size of transform block.In rearwardly direction
Upper scanning quantization parameter.When quantifying transform block more than predefined size, conversion coefficient is divided into multiple sub-blocks and is scanned.
Scan type applied to the conversion coefficient of sub-block is identical.Scan type applied to sub-block can be zigzag scanning, or
Person can be the conversion coefficient identical scan type with being applied to sub-block.
Inverse quantization module 220 determines the quantization step predicted value of current coded unit, and by identified quantization step
Predicted value is added to reconstruct the quantization step of current coded unit with the residual quantization step-length received.Inverse quantization module 220 makes
With the quantization step and re-quantization matrix re-quantization is carried out to quantifying block.Quantization matrix is according to the size and prediction for quantifying block
Pattern and determine.That is, quantization matrix is the predictive mode and the frame in for the quantization block with predefined size in current block
Selected on the basis of at least one in predictive mode.
Inverse transform module 230 carries out inverse transformation to reconstruct residual block to the transform block of re-quantization.To be applied to re-quantization
The inverse-transform matrix of block can be determined according to predictive mode and intra prediction mode.
Addition module 280 is by the prediction block created by intra-framed prediction module 240 or Inter prediction module 250 and by inverse transformation
The residual block that module 230 is reconstructed is added to create reconstructed blocks.
Intra-framed prediction module 240 is reconstructed currently on the basis of the intraframe prediction information received from entropy decoder module 210
The intra prediction mode of block.Then, intra-framed prediction module 240 creates prediction block according to the intra prediction mode of reconstruct.
The reconstructed reference on the basis of the inter prediction information received from entropy decoder module 210 of Inter prediction module 250
Picture indices and motion vector.Then, Inter prediction module 250 is created using the reference picture index and motion vector works as
Preceding piece of prediction block.When the motion compensation that application is predicted with the decimal system, using the interpolation filter of selection to create prediction
Block.
The operation of post-processing module 260 is identical with the operation of the post-processing module 160 shown in Fig. 1, and therefore will no longer
Description.
Picture buffer 270 stores the decoding image post-processed by post-processing module 260 by unit of picture.
Fig. 3 is to illustrate to create intra-frame prediction block in motion picture decoding device 200 according to embodiment of the present invention
The figure of method.
First, intraframe prediction information of 210 pairs of the entropy decoder module from the bit stream received carries out entropy decoding (S110).
Intraframe prediction information includes intra prediction mode group designator and predictive mode is indexed.Intra prediction mode group is indicated
Symbol indicates the group that the intra prediction mode of current block belongs to beyond MPM groups or MPM groups.Predictive mode index is indicated by frame
The information of the specific intra prediction mode in intra prediction mode group indicated by inner estimation mode group designator.
Then, intra-framed prediction module 240 is created MPM groups using the intra prediction mode of the block adjacent with current block and connect
The intra prediction mode (S120) of reconstruct current block.MPM groups include three intra prediction modes.This describes reference picture 4.
Fig. 4 is the figure for illustrating the intra prediction mode according to embodiment of the present invention.
(1) the upper mass of current block or the intra prediction mode of left side block all exist and it is different from each other when, MPM groups bag
Include two intra prediction modes and an additional intraprediction mode.
It is pre- in additional frame when one in two intra prediction modes is DC patterns and another is not plane mode
Survey pattern can be plane mode.Similarly, when one in two intra prediction modes be plane mode and another not
When being DC patterns, additional intraprediction mode can be DC patterns.
When two intra prediction modes are DC patterns and plane mode, additional intraprediction mode can be vertical mode
Or horizontal pattern.
When two intra prediction modes neither when DC patterns are not again plane modes, additional intraprediction mode can be
Have directive intra prediction mode, or DC patterns or plane mode between two intra prediction modes.
(2) the upper mass of current block or the intra prediction mode of left side block all exist and it is mutually the same when, MPM groups include
Intra prediction mode and two additional intraprediction modes.
When intra prediction mode neither when DC patterns are not again plane modes, two additional intraprediction modes are set
For two intra prediction modes adjacent with intra prediction mode.When intra prediction mode is DC patterns, in two additional frames
Predictive mode can be plane mode and vertical mode.
(3) as one in the upper mass or the intra prediction mode of left side block for only existing current block, MPM groups include frame
Inner estimation mode and two additional intraprediction modes.Two additional intraprediction modes are determined according to intra prediction mode.
(4) current block upper mass or left side block intra prediction mode not in the presence of, MPM groups include DC moulds
Formula, plane mode and vertical mode.
When intra prediction mode group designator indicates MPM groups, intra-framed prediction module 240 is selected by pre- from the MPM groups
The intra prediction mode that mode index is indicated is surveyed, and selected intra prediction mode is defined as to the infra-frame prediction of current block
Pattern.Intra prediction mode group designator can be represent current block intra prediction mode belong to MPM groups or MPM groups with
The label information of outer group.
When intra prediction mode group designator does not indicate MPM groups, intra-framed prediction module 240 will belong to the frame in of MPM groups
Predictive mode index institute in intra prediction mode (hereinafter referred to as remaining intra prediction mode) beyond predictive mode
The intra prediction mode of instruction is defined as the intra prediction mode of current block.It is assigned to the predictive mode of residual intra prediction mode
Index can change according to the configuration of MPM groups.That is, the predictive mode index of decoding indicates the configuration according to MPM groups
And the index of the residual intra prediction mode rearranged.Therefore, intra-framed prediction module 240 is indexed according to the predictive mode of decoding
The intra prediction mode of current block is selected from residual intra prediction mode with the intra prediction mode for belonging to MPM groups.
Specifically, the residual frame Nellie predictive mode of current block is rearranged according to MODE NUMBER order, and will be with
The predictive mode received indexes the intra prediction mode that corresponding Intra prediction mode selection is current block.In such case
Under, residual intra prediction mode can be rearranged, but the intra prediction mode of current block can be by will belong to MPM groups
The intra prediction mode index of intra prediction mode number and current block is compared to determine.
This method can be applied to the DC patterns that MODE NUMBER 2 is assigned to non-directional pattern, and MODE NUMBER 34 is referred to
Plane mode is tasked, and directional mode numbering is assigned to the situation of other patterns.However, due to selection plane mode and
DC patterns are higher than other directional modes as the probability of the intra prediction mode of current block, therefore by small MODE NUMBER (example
Such as, MODE NUMBER 0) it is assigned to plane mode and the above method can be applied.In this case, the relatively low mould of other sequences
The MODE NUMBER increase by 1 of formula.
Alternatively, non-directional pattern can be given by minimum index assignment.For example, in the intra prediction mode of current block
When being plane mode and remaining intra prediction mode including plane mode, intra prediction mode index can include 0.For example,
When remaining intra prediction mode including plane mode and DC patterns, according to plane mode, DC patterns and directional mode
Predictive mode in the state of arranging these patterns, can be indexed corresponding intra prediction mode and be set to current block by order
Intra prediction mode.For example, MODE NUMBER 0 and pattern-coding 1 can be individually assigned to plane mode and DC patterns, Huo Zhemo
Formula numbering 0 and pattern-coding 1 can be individually assigned to DC patterns and plane mode.In such a case, it is possible to by current block
The intra prediction mode number that intra prediction mode index belongs to MPM groups is compared to determine the infra-frame prediction mould of current block
Formula.
Intra-framed prediction module 240 determines the size of prediction block using the information for the transform size for indicating current block
(S130)。
When the size of prediction block is equal to the size of current block, the intra prediction mode and the ginseng of current block of current block are used
Pixel is examined to create prediction block.Reference pixel is the pixel for being reconstructed or creating before current block.
When prediction block size be less than current block size when (that is, current block can be divided into multiple sub-blocks and
When can perform infra-frame prediction to these sub-blocks), come using same intra prediction mode (that is, the intra prediction mode of current block)
Create the prediction block of each sub-block.The second sub-block in decoding order or before the prediction block use of subsequent sub-block sub-block reconstruct
Pixel is created.Therefore, after prediction block, residual block and reconstructed blocks are created by unit of sub-block, the prediction of next sub-block
Block is created.
Intra-framed prediction module 240 determines whether the reference pixel of the block corresponding with the size of prediction block is all effective
(S140).The pixel that reference pixel is decoded or reconstructed before being.When it is determined that in reference pixel at least one it is invalid when, create should
Reference pixel (S150).
Specifically, when it is determined that reference pixel is absolutely void, use value 2L-1Replace reference pixel value.Here, L is represented
Represent the quantity of the bit of the gray scale of luminance component.
When only there is effective reference pixel on a direction of the position of inactive reference pixels, effectively reference is replicated
In pixel near reference pixel to create reference pixel.
When there is effective reference pixel on the both direction for the position of inactive reference pixels, position can be replicated
Can be with the reference pixel near position on predetermined direction, or two hithermost ginsengs in the two directions can be taken
The average value of pixel is examined to create reference pixel.
Intra-framed prediction module 240 determines whether to filter reference pixel (S160).It is pre- according to the frame in of reconstruct
The size of survey pattern and prediction block carries out adaptive filtering (S170) to reference pixel.
When intra prediction mode is DC patterns, intra-framed prediction module 240 is not filtered to reference pixel.When frame in is pre-
When survey pattern is vertical mode and horizontal pattern, intra-framed prediction module 240 only filters reference pixel.However, working as infra-frame prediction
When pattern is the directional mode beyond vertical mode and horizontal pattern, according to the size of intra prediction mode and prediction block to ginseng
Examine pixel and carry out adaptive filtering.It is complicated for reduction regardless of intra prediction mode when the size of prediction block is 4 × 4
The purpose of property, is not filtered to reference pixel.Filter for making the change of the pixel value between reference pixel smooth and using
Low pass filter.Low pass filter can be as 3-tap wave filters [1,2,1] or as 5-tap wave filters [1,2,
4,2,1].When prediction block size scope from 8 × 8 to 32 × 32 when, with the increase of the size of prediction block, in more frame ins
Reference pixel is filtered in predictive mode.
Intra-framed prediction module 240 creates prediction block (S180) according to intra prediction mode.Reference image for prediction block
Element can be the size and intra prediction mode according to prediction block and by the pixel of adaptive filtering.
In DC patterns, N number of top reference pixel at the position of (x=0 ..., N-1, y=-1), positioned at (x=
1-, y=0 ..., M-1) position at M left side reference pixel and the corner at the position of (x=-1, y=-1)
The average value of pixel can be defined as the prediction pixel of prediction block.However, it is possible to use the weighted average of the average value and with it is pre-
Survey the adjacent reference image of pixel and usually create the prediction pixel adjacent with reference pixel.In plane mode, can according to DC
Identical mode creates prediction pixel in pattern.
In vertical mode, the reference pixel in vertical direction is arranged to prediction pixel.However, it is possible to use position
Change between the reference pixel in vertical direction and left side reference pixel is adjacent with left side reference pixel pre- to create
Survey pixel.The change represents the change between corner reference pixel and the reference pixel adjacent with prediction pixel.In horizontal mould
In formula, in addition to direction, prediction pixel can be created according to vertical mode identical mode.
Fig. 5 is the figure for illustrating the intra prediction mode coding order according to embodiment of the present invention.It will be described below Fig. 1
The method encoded in shown motion picture encoding apparatus to the intra prediction mode of current block.This method can be by scheming
Intra-framed prediction module 110 and entropy code module 140 shown in 1 are performed.
First, the intra prediction mode (S210) of current block is determined.
Then, the MPM groups (S220) of current block are created.Create the method for MPM groups and in the intra prediction mode shown in Fig. 2
The method that MPM groups are created in 240 is identical, and therefore will not be described again.
It is then determined that whether the intra prediction mode of current block belongs to MPM groups (S230).
When intra prediction mode belongs to MPM groups, it is determined that indicating mark (that is, the intra prediction mode group instruction of MPM groups
Symbol) and indicate that the predictive mode of the specific intra prediction mode in MPM groups indexes (S240).
When intra prediction mode is not belonging to MPM groups, it is determined that not indicating the mark of MPM groups and indicating that the frame in of MPM groups is pre-
The specific intra prediction mode in intra prediction mode (hereinafter referred to as remaining intra prediction mode) beyond survey pattern
Predictive mode indexes (S250).
Indicate that the predictive mode of the intra prediction mode of the current block in residual intra prediction mode is indexed according to MPM groups
Configure and change.That is, predictive mode index represents the residual infra-frame prediction mould rearranged according to the configuration of MPM groups
The index of formula.Therefore, predictive mode index according to the intra prediction mode of current block and belong to MPM groups intra prediction mode and
It is determined that.
Specifically, the intra prediction mode of the residual of current block can be rearranged according to MODE NUMBER order, and
And the order of the intra prediction mode of current block can be defined as predictive mode index.Alternatively, the intra prediction mode of residual
Can rearrange, but the intra prediction mode of current block can by will belong to the intra prediction mode numbers of MPM groups with
The intra prediction mode index of current block is compared to determine.
This method can be applied to the DC patterns that MODE NUMBER 2 is assigned to non-directional pattern, and MODE NUMBER 34 is referred to
Plane mode is tasked, and directional mode numbering is assigned to the situation of other patterns.However, due to selection plane mode and
DC patterns are higher than other directional modes as the probability of current intra prediction mode, thus by small MODE NUMBER (for example,
MODE NUMBER 0) it is assigned to plane mode and the above method can be applied.In this case, the relatively low pattern of other sequences
MODE NUMBER increase by 1.Alternatively, non-directional pattern can be given by minimum index assignment.For example, the frame in current block is pre-
When survey pattern is plane mode and remains intra prediction mode including plane mode, intra prediction mode index can include 0.
For example, when remaining intra prediction mode including plane mode and DC patterns, according to plane mode, DC patterns and directionality mould
In the case that these patterns of the secondary ordered pair of formula are arranged, the intra prediction mode corresponding with predictive mode index can be set
It is set to the intra prediction mode of current block.For example, MODE NUMBER 0 and pattern-coding 1 can be individually assigned to plane mode and DC
Pattern, or MODE NUMBER 0 and pattern-coding 1 can be individually assigned to DC patterns and plane mode.In this case, currently
The intra prediction mode index of block can be compared to determine the frame of current block with belonging to the intra prediction mode number of MPM groups
Inner estimation mode.
Although with reference to above-mentioned embodiment, invention has been described, the skilled artisan will appreciate that
, can be with various shapes in the case where not departing from the spirit and scope of the present invention arrived described by appended claim
Formula makes modifications and changes to the present invention.
Claims (8)
1. a kind of method decoded to intra prediction mode, this method comprises the following steps：
Intra prediction mode group designator and predictive mode index are reconstructed, wherein, the predictive mode index is indicated by the frame
The specific intra prediction mode in intra prediction mode group indicated by inner estimation mode group designator；
MPM groups are constructed using the left side block of current block and the intra prediction mode of presence of upper mass, and the MPM groups include three
Individual intra prediction mode；
When the intra prediction mode group designator indicates that the intra prediction mode of the current block belongs to the MPM groups, really
The intra prediction mode corresponding with the predictive mode index in the MPM groups is determined as the infra-frame prediction of the current block
Pattern；And
When the intra prediction mode group designator indicates that the intra prediction mode of the current block is not belonging to the MPM groups,
Index the intra prediction mode with the MPM groups to determine the infra-frame prediction mould of the current block using the predictive mode
Formula,
Wherein, when in the left side block of the current block and the intra prediction mode of the upper mass only one frame in it is pre-
In the presence of survey pattern, the MPM groups include two additional intraprediction modes and described two additional intraprediction modes
Determined according to existing intra prediction mode,
Wherein, when the left side block of the current block and the intra prediction mode of the upper mass are all present, each other
It is identical and when being directional intra prediction pattern, add both direction intra prediction mode to the MPM groups.
2. according to the method described in claim 1, wherein, pattern of the MODE NUMBER than other intra prediction modes of plane mode
Numbering is low.
3. method according to claim 2, wherein, MODE NUMBER 0 is assigned to the plane mode.
4. according to the method described in claim 1, wherein, when the left side block and the intra prediction mode of the upper mass
In the presence of an intra prediction mode in, different from each other and described left side block and the intra prediction mode of the upper mass
It is one and the left side block and the intra prediction mode of the upper mass in two non-directional intra prediction modes
In another intra prediction mode when being directional intra prediction pattern, it is pre- that the MPM groups include two non-directional frame ins
Survey pattern and the directional intra prediction pattern.
5. method according to claim 3, wherein, when one in described two non-directional intra prediction modes is DC
During pattern, the MPM groups include the DC patterns, the plane mode and the directional intra prediction pattern.
6. method according to claim 3, wherein, described two non-directional intra prediction modes are the plane modes
With DC patterns.
7. according to the method described in claim 1, wherein, when only one exist intra prediction mode be two non-directional frames
During one in inner estimation mode, another non-directional intra prediction mode and vertical mode are added to the MPM groups.
8. according to the method described in claim 1, wherein, when only one exist intra prediction mode be directional intra prediction
During one in pattern, two non-directional intra prediction modes are added to the MPM groups, wherein, described two non-directions
Property intra prediction mode is DC patterns and plane mode.
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Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11284072B2 (en) | 2010-08-17 | 2022-03-22 | M&K Holdings Inc. | Apparatus for decoding an image |
| ES2685668T3 (en) | 2010-08-17 | 2018-10-10 | M&K Holdings Inc. | Apparatus for encoding an intraprediction mode |
| WO2012078001A2 (en) * | 2010-12-08 | 2012-06-14 | 엘지전자 주식회사 | Intra prediction method and encoding apparatus and decoding apparatus using same |
| CN107197310B (en) | 2011-10-07 | 2020-02-21 | 英迪股份有限公司 | Method for decoding video signal |
| EP2945381B1 (en) | 2011-10-24 | 2020-06-03 | Innotive Ltd | Image decoding apparatus |
| ES2816567T3 (en) * | 2011-10-24 | 2021-04-05 | Innotive Ltd | Method and apparatus for decoding intra-prediction mode |
| KR20130049525A (en) * | 2011-11-04 | 2013-05-14 | 오수미 | Method for inverse transform for reconstructing residual block |
| KR20130049526A (en) * | 2011-11-04 | 2013-05-14 | 오수미 | Method for generating reconstructed block |
| KR20130049523A (en) * | 2011-11-04 | 2013-05-14 | 오수미 | Apparatus for generating intra prediction block |
| KR20130049522A (en) * | 2011-11-04 | 2013-05-14 | 오수미 | Method for generating intra prediction block |
| US9554136B2 (en) | 2011-12-05 | 2017-01-24 | Lg Electronics Inc. | Method and device for intra prediction |
| US9210438B2 (en) * | 2012-01-20 | 2015-12-08 | Sony Corporation | Logical intra mode naming in HEVC video coding |
| CN104081770B (en) * | 2012-01-20 | 2018-10-09 | 英迪股份有限公司 | Intra prediction mode mapping method and the device for using this method |
| US11394972B2 (en) * | 2015-08-19 | 2022-07-19 | Lg Electronics Inc. | Method and device for encoding/decoding video signal by using optimized conversion based on multiple graph-based model |
| US10694179B2 (en) * | 2016-01-12 | 2020-06-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Video coding using hybrid intra prediction |
| WO2017138393A1 (en) * | 2016-02-08 | 2017-08-17 | Sharp Kabushiki Kaisha | Systems and methods for intra prediction coding |
| CN113810699B (en) * | 2016-04-29 | 2024-05-14 | 世宗大学校产学协力团 | Method and apparatus for encoding and decoding image signals |
| AU2017342627B2 (en) | 2016-10-11 | 2020-10-15 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Image decoding method and apparatus relying on intra prediction in image coding system |
| WO2018117894A1 (en) * | 2016-12-23 | 2018-06-28 | Huawei Technologies Co., Ltd | An encoding apparatus for signaling an extension directional intra-prediction mode within a set of directional intra-prediction modes |
| KR102528387B1 (en) * | 2017-01-09 | 2023-05-03 | 에스케이텔레콤 주식회사 | Apparatus and Method for Video Encoding or Decoding |
| JP7039815B2 (en) * | 2017-06-22 | 2022-03-23 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | In-frame prediction method and equipment |
| CN110720216B (en) * | 2017-07-05 | 2022-05-10 | 华为技术有限公司 | Apparatus and method for video encoding |
| US11178405B2 (en) * | 2017-10-18 | 2021-11-16 | Samsung Electronics Co., Ltd. | Method and apparatus for video decoding, and method and apparatus for video encoding |
| EP3844951A4 (en) | 2018-08-31 | 2022-06-08 | HFI Innovation Inc. | Method and apparatus of intra prediction with mpm generation in image and video processing |
| KR102618079B1 (en) | 2018-10-07 | 2023-12-27 | 삼성전자주식회사 | Video signal processing method and device using MPM configuration method for multiple reference lines |
| CN118214861A (en) * | 2018-10-12 | 2024-06-18 | 英迪股份有限公司 | Image decoding and encoding method, digital storage medium, and method of transmitting bit stream |
| KR102759160B1 (en) | 2018-10-12 | 2025-01-24 | 삼성전자주식회사 | Method and device for processing video signal by using cross-component linear model |
| CN118984380A (en) * | 2018-12-28 | 2024-11-19 | 韩国电子通信研究院 | Method and apparatus for deriving intra prediction mode |
| WO2020141816A1 (en) * | 2018-12-31 | 2020-07-09 | 한국전자통신연구원 | Image encoding/decoding method and device, and recording medium in which bitstream is stored |
| CN116527894A (en) | 2019-01-08 | 2023-08-01 | Lg电子株式会社 | Image codec method, digital storage medium and data transmission method |
| CN110166772B (en) * | 2019-03-12 | 2021-04-27 | 浙江大华技术股份有限公司 | Method, device, equipment and readable storage medium for coding and decoding intra-frame prediction mode |
| WO2020182167A1 (en) | 2019-03-12 | 2020-09-17 | Zhejiang Dahua Technology Co., Ltd. | Systems and methods for image coding |
| FI3932057T3 (en) | 2019-03-23 | 2024-09-16 | Huawei Tech Co Ltd | An encoder, a decoder and corresponding methods for intra prediction |
| KR20220038127A (en) * | 2019-08-22 | 2022-03-25 | 엘지전자 주식회사 | Matrix-based intra prediction apparatus and method |
| CN111050165B (en) * | 2019-11-29 | 2022-02-22 | 苏州浪潮智能科技有限公司 | Video decoding method, device and medium |
| US20230059035A1 (en) * | 2021-08-23 | 2023-02-23 | Netflix, Inc. | Efficient encoding of film grain noise |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101622877A (en) * | 2006-12-22 | 2010-01-06 | 高通股份有限公司 | Systems and methods for efficient spatial intra predictabilty determination (or assessment) |
| CN101690235A (en) * | 2007-06-29 | 2010-03-31 | 夏普株式会社 | Image encoding device, image encoding method, image decoding device, image decoding method, program, and recording medium |
| US20110038415A1 (en) * | 2009-08-17 | 2011-02-17 | Samsung Electronics Co., Ltd. | Method and apparatus for encoding video, and method and apparatus for decoding video |
| CN104918056B (en) * | 2011-10-24 | 2017-08-18 | 英孚布瑞智有限私人贸易公司 | The method decoded to intra prediction mode |
Family Cites Families (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6950469B2 (en) * | 2001-09-17 | 2005-09-27 | Nokia Corporation | Method for sub-pixel value interpolation |
| KR100750110B1 (en) | 2003-04-22 | 2007-08-17 | 삼성전자주식회사 | Method and apparatus for determining 4 × 4 intra luminance prediction mode |
| US7565020B2 (en) * | 2004-07-03 | 2009-07-21 | Microsoft Corp. | System and method for image coding employing a hybrid directional prediction and wavelet lifting |
| KR100654436B1 (en) | 2004-07-07 | 2006-12-06 | 삼성전자주식회사 | Method for video encoding and decoding, and video encoder and decoder |
| CN100348051C (en) * | 2005-03-31 | 2007-11-07 | 华中科技大学 | An enhanced in-frame predictive mode coding method |
| KR100739714B1 (en) | 2005-07-06 | 2007-07-13 | 삼성전자주식회사 | Method and apparatus for determining intra prediction mode |
| KR100678911B1 (en) | 2005-07-21 | 2007-02-05 | 삼성전자주식회사 | Method and apparatus for encoding and decoding video signals by extending the application of directional intra prediction |
| KR20070016663A (en) | 2005-08-04 | 2007-02-08 | 김해광 | Block-based video encoding and playback method and apparatus |
| KR100750128B1 (en) * | 2005-09-06 | 2007-08-21 | 삼성전자주식회사 | Method and apparatus for intra prediction encoding and decoding of images |
| KR100723507B1 (en) | 2005-10-12 | 2007-05-30 | 삼성전자주식회사 | Adaptive Quantization Controller and Adaptive Quantization Control Method for Video Compression Using I-frame Motion Prediction |
| KR101246294B1 (en) | 2006-03-03 | 2013-03-21 | 삼성전자주식회사 | Method of and apparatus for video intraprediction encoding/decoding |
| WO2008004940A1 (en) | 2006-07-07 | 2008-01-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Video data management |
| US8331448B2 (en) | 2006-12-22 | 2012-12-11 | Qualcomm Incorporated | Systems and methods for efficient spatial intra predictabilty determination (or assessment) |
| JP5437807B2 (en) | 2007-09-18 | 2014-03-12 | 富士通株式会社 | Moving picture encoding apparatus and moving picture decoding apparatus |
| KR101433170B1 (en) * | 2008-01-05 | 2014-08-28 | 경희대학교 산학협력단 | An encoding and decoding method for estimating an intra prediction mode using a spatial prediction directionality of an adjacent block, |
| JP5111127B2 (en) * | 2008-01-22 | 2012-12-26 | キヤノン株式会社 | Moving picture coding apparatus, control method therefor, and computer program |
| US8542730B2 (en) | 2008-02-22 | 2013-09-24 | Qualcomm, Incorporated | Fast macroblock delta QP decision |
| JP4958825B2 (en) | 2008-03-28 | 2012-06-20 | キヤノン株式会社 | Moving picture coding apparatus, control method therefor, and computer program |
| US8761253B2 (en) | 2008-05-28 | 2014-06-24 | Nvidia Corporation | Intra prediction mode search scheme |
| CN100596202C (en) * | 2008-05-30 | 2010-03-24 | 四川虹微技术有限公司 | Fast mode selection method in frame |
| KR101458471B1 (en) | 2008-10-01 | 2014-11-10 | 에스케이텔레콤 주식회사 | Image encoding / decoding method and apparatus |
| US8582645B2 (en) | 2009-06-11 | 2013-11-12 | Texas Instruments Incorporated | Reducing flicker in the display of video streams |
| JP5597968B2 (en) | 2009-07-01 | 2014-10-01 | ソニー株式会社 | Image processing apparatus and method, program, and recording medium |
| KR101702553B1 (en) * | 2009-07-04 | 2017-02-03 | 에스케이 텔레콤주식회사 | Video Coding Method and Apparatus |
| KR101379186B1 (en) | 2009-08-21 | 2014-04-10 | 에스케이 텔레콤주식회사 | Inrtra Prediction Enoding/Decoding Method and Apparatus |
| KR101507344B1 (en) * | 2009-08-21 | 2015-03-31 | 에스케이 텔레콤주식회사 | Apparatus and Method for intra prediction mode coding using variable length code, and Recording Medium therefor |
| JP4924708B2 (en) | 2009-12-28 | 2012-04-25 | ソニー株式会社 | Decoding apparatus and method |
| US9083974B2 (en) | 2010-05-17 | 2015-07-14 | Lg Electronics Inc. | Intra prediction modes |
| US8902978B2 (en) | 2010-05-30 | 2014-12-02 | Lg Electronics Inc. | Enhanced intra prediction mode signaling |
| CN101854551B (en) * | 2010-06-08 | 2012-08-15 | 浙江大学 | Intra-frame prediction mode coding and decoding method and device |
| US20120114034A1 (en) | 2010-11-08 | 2012-05-10 | Mediatek Inc. | Method and Apparatus of Delta Quantization Parameter Processing for High Efficiency Video Coding |
| WO2012078001A2 (en) | 2010-12-08 | 2012-06-14 | 엘지전자 주식회사 | Intra prediction method and encoding apparatus and decoding apparatus using same |
| US9667987B2 (en) * | 2011-03-10 | 2017-05-30 | Futurewei Technologies, Inc. | Using multiple prediction sets to encode extended unified directional intra mode numbers for robustness |
| US9654785B2 (en) * | 2011-06-09 | 2017-05-16 | Qualcomm Incorporated | Enhanced intra-prediction mode signaling for video coding using neighboring mode |
| LT3136728T (en) * | 2011-06-28 | 2018-03-26 | Samsung Electronics Co., Ltd. | Method for decoding video with intra prediction |
| GB2494468B (en) * | 2011-09-12 | 2014-01-15 | Canon Kk | Method and device for encoding or decoding information representing prediction modes |
| PH12013500709A1 (en) * | 2011-09-13 | 2013-05-20 | Hfi Innovation Inc | Method and apparatus for intra mode coding in hevc |
| US8984774B2 (en) | 2011-09-16 | 2015-03-24 | Nike, Inc. | Cut step traction element arrangement for an article of footwear |
| CN107197310B (en) | 2011-10-07 | 2020-02-21 | 英迪股份有限公司 | Method for decoding video signal |
| CN104247423B (en) * | 2012-03-21 | 2018-08-07 | 联发科技（新加坡）私人有限公司 | The frame mode coding method of scalable video coding system and device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101622877A (en) * | 2006-12-22 | 2010-01-06 | 高通股份有限公司 | Systems and methods for efficient spatial intra predictabilty determination (or assessment) |
| CN101690235A (en) * | 2007-06-29 | 2010-03-31 | 夏普株式会社 | Image encoding device, image encoding method, image decoding device, image decoding method, program, and recording medium |
| US20110038415A1 (en) * | 2009-08-17 | 2011-02-17 | Samsung Electronics Co., Ltd. | Method and apparatus for encoding video, and method and apparatus for decoding video |
| CN104918056B (en) * | 2011-10-24 | 2017-08-18 | 英孚布瑞智有限私人贸易公司 | The method decoded to intra prediction mode |
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